Leachate recirculation effects on solid-state anaerobic digestion of Pennisetum hybrid and microbial community analysis
文献类型：期刊论文
| 作者 | Xing, Tao1,2,3,4; Kong, Xiaoying1,2,3 ; Dong, Pengyu1; Zhen, Feng1,2,3; Sun, Yongming1,2,3
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| 刊名 | JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
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| 出版日期 | 2020-02-06 |
| 页码 | 9 |
| 关键词 | biomass anaerobic digestion solid-state fermentation leaching biogas |
| ISSN号 | 0268-2575 |
| DOI | 10.1002/jctb.6310 |
| 通讯作者 | Sun, Yongming(sunym@ms.giec.ac.cn) |
| 英文摘要 | BACKGROUND A leach-bed reactor (LBR) with leachate recirculation is a suitable technology for lignocellulosic biomass anaerobic digestion. In this study, the effect of percolate reflux strategies (continuous recirculation and intermittent recirculation) on methane production from Pennisetum hybrid, a type of energy crop, was investigated using a two-layered LBR. RESULTS Compared to a solid-state anaerobic digestion batch test, LBRs with percolate recirculation provide a stable process with a short lag phase by avoiding inhibition of volatile fatty acid accumulation and inoculation effect. The results also indicated that continuous reflux led to a lower accumulative methane yield (56.20 L kg(-1) VS) compared to intermittent reflux (78.50 L kg(-1) VS), resulting from washing effect and poorer distribution on the lower layer. According to microbial analysis, Bacteroidetes, Firmicutes, Proteobacteria and Synergistetes were the most predominant bacterial phyla in each LBR test sample and aceticlastic methanogen (at least >55%) plays a predominant role for methane production in all samples. CONCLUSIONS The results indicate that leachate recirculation could provide stable conditions for methane yield; however, two-layer reactor designs which cannot guarantee the desired distribution in the lower layer result in a low methane yield. Suitable design of LBRs to maintain a well-distributed reflux leachate should be further investigated. (c) 2019 Society of Chemical Industry |
| WOS关键词 | CO-DIGESTION ; BIOGAS PRODUCTION ; BED REACTOR ; LIGNOCELLULOSIC BIOMASS ; METHANE PRODUCTION ; PERFORMANCE ; WASTE ; RATIO ; STRATEGIES ; INOCULUM |
| 资助项目 | National Natural Science Foundation of China[51808528] ; Science and Technology Planning Project of Guangdong Province[2017B020238005] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA21050400] ; Bureau of International Cooperation, Chinese Academy of Sciences[182344KYSB20170009] ; Science and Technology Program of Guangzhou[201803030007] |
| WOS研究方向 | Biotechnology & Applied Microbiology ; Chemistry ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000511354000001 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China ; Science and Technology Planning Project of Guangdong Province ; Strategic Priority Research Program of Chinese Academy of Sciences ; Bureau of International Cooperation, Chinese Academy of Sciences ; Science and Technology Program of Guangzhou |
| 源URL | [http://ir.giec.ac.cn/handle/344007/26438]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Sun, Yongming |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Peoples R China 2.CAS Key Lab Renewable Energy, Guangzhou, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xing, Tao,Kong, Xiaoying,Dong, Pengyu,et al. Leachate recirculation effects on solid-state anaerobic digestion of Pennisetum hybrid and microbial community analysis[J]. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,2020:9. |
| APA | Xing, Tao,Kong, Xiaoying,Dong, Pengyu,Zhen, Feng,&Sun, Yongming.(2020).Leachate recirculation effects on solid-state anaerobic digestion of Pennisetum hybrid and microbial community analysis.JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,9. |
| MLA | Xing, Tao,et al."Leachate recirculation effects on solid-state anaerobic digestion of Pennisetum hybrid and microbial community analysis".JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2020):9. |
入库方式： OAI收割
来源：广州能源研究所
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